Combined open and solid die header



April 28, 1931. s rr 1,802,788

COMBINED OPEN AND SOLID DIE HEADER Filed June 28, 1928 4 Sheets-Sheet l INVENTOR r BY fivm Maw/47 ATTORNEYS April 28, 1931.

R. H. SMITH COMBINED OPEN AND SOLID DIE HEADER Filed June 28, 1928 4 Sheets-Sheet 2 R O T N E V m AT'IORNEYS April 28, 1931. R. H. SMITH 1,802,788

COMBINED OPEN AND SOLID DI E HEADER Filed June 28, 1928 4 Sheets-Sheet 3 ATTORNEYS April 28, 1931. R SMITH 1,802,788

COMBINED OPEN AND SOLID DIE HEADER Filed June 28, 1928 4 Sheets-Sheet 4 mama l nza. m1 1,802,788

Uim'Eb: stAT'Es TENT aim-ca '1 an! 01m;

lump mm moccasin hambm'ught b10188 m the rea m invention is. e

oi umnlfipla hlowmachim wi gut the 001m pllmtidn apd production incident to 55 W z-tolib.

vinm os *flmlllllfi m y v n wm-m;

onoofvrhich mm as in pulley. hm

53% i I l.

.Fignra 2 ii-a firu asvrba nectionfl view 5 small slide block 30 having 'machine in alignment with the hammer. An open die com osed of two pieces 21 and 22 is,

mounted for imited transverse slidin movement in horizontal guides in the machine bed. When at the limit of its motion toward the right, as viewed in Figs. 2 and 5, the open guide is in alignment with hammer 17. In

the drawin it is shown at the limit of its motion tower the left, where its.die opemng s in ali ment with a feed 1= 23 in the machine bed. At such times the die pieces 21 and 22 are spaced apart slightly by a pin 8 with a beveled lower end w ch engages adjacent beveled ed upon the die pieces, re-

silient means, suc as a leaf spring'9, being em loyed for the pin inw y.

e wire material from which the blanks are formed is directed into the machine through the passage 23 in any well known manner, such as b means of a pair of superposed feed rolls, ust-rated at 24. This open die is normally ,urged toward the left, as viewed in Figure 5, by a pad 25 mounted on' the inner ends of a pair of rods 26, slidable in bored passages in the machine bed. The rods 26 are urged inwardly by a pair of leaf springs 27, that are secured to the machine bed by a bolt 28.

Suitable means are empllgyed for shiftin the open die periodically in the illustrate position'to a position in ent with hammer 17. The means herein 'shownforjthis purpose comprises a slide 29, in which is formed a transverse guide-wa carrying a ets in which adpair of ball ended to gles 31, 32 are mounte The toggle 32 is a mounted in a socket in a block 33, the position of which may be adjusted by means of a threaded rod 34. The outer end of toggle 32 is, therefore, fixed. Toggle 31, however, is mounted in a socket in a plunger 35 that is slidable in the machine bed and carries at its inner end a die press block 36. Between the block 36 and the die piece 22 there is a filler block 37. Obviously whhe n the b10311: 29 mcives to the left, as views in igure 1, e togg es 31, 32 spread, moving' block 30 and toggle 31 inwardly thereby causin plunger 35, pressure block 36 and filler 3 to move inwardly also. The block 29 is moved by suitable means in redetermined timed relation to other moving parts of the machine, this means including preferably a rod 38, pinned to the block 29 and tion of a roller 39 that has an axle 40 mounted in the bifurcations of the rod 38 and extending therebe 0nd at 41, where it is mounted in a cam fo ower 42. The roller 39 runs upon the periphery of the cam 43, which is fixed to shaft 11, while the follower 42 ms in acamgroove44cutintoa disc45 alsofixed to shaft 11. A coil spring 9 attached to the block 29 and to the bed of the machine assists cam 44 in retractin the block 29.

In connection wi h the solid die 201 employ a knock outof known cpnstruction, consisting of a rod 46 slidable in a bore in the bed of the machine and shifted inwardly at timed intervals by means of a knock-out lever 47 which is actuated by a slide 48 that is reci rocated by means of a cam 49 on the shaft 1 through a cam follower 50 that is mounted in one end of a lever,51,-pivote d at 51' to the bed of the machine. A conn rod 52 joins'the slide 48 with the lever 51 through the intermediacy of a bracket 52, 'which is adjustably secured to the lever 51. The.

length of stroke of the connecting rod 52 may, therefore, be regulated to suit th work being done. 53'is a feed stop which is operated to swing into position at regular intervals to stop the movement of thewire into the machine through the open die, prior to the cut off movement of the die, in other words, when the die is in the position illustrated in the drawings. The feed stop 53 is shown, however, in its inoperative position.

Referring now to Figures 2, 3, 4 and 7 is see s I poy ortra emng om. eopen die to the solid die, 54 is a bracket that is secured to the underside of the machine bed 10, in which is carried two rock shafts 55 and 56 that are szpplied with crank arms 57 and 58, respecti y, by means of which oscillatin motion is imparted to the shafts in proper y timed relation by any suitable mechanism. A pair of arms 59, 60 are secured to the shaft 55 and are pivotally connected to links 61, 62, that are in turn pivoted to slide,

brackets 63, 64, which are mounted to slide upon vertically arranged sts 65 66 fixed in the bracket 54. The sli e brackets 63 64. carry a pair of track rails 67, 68. A saddle 69 is mounted to slide upon the rails67, 68 and also upo I in and movable with a horizontally sliding rack 71. The rack 71 is adapted to be reci rocatcd by a pinion 72, which meshes with the rack. A shaft 73, upon which the inion 72 is fixed, carries a bevel gear 74 at its lower end, which meshes with a toothed sector 7 5 mounted on the shaft 56. The face.

of the saddle 69 is provided with a dovetail slot, as shown, for the reception of a dovetail projection upon the rear side of a vertically extending transfer finger 76. The pon a standard 70 that is mounted y sition of the latter in the slot of thesaddle may be adjusted and the finger held in such position by means of a screw 77. At its upper end the finger 76 is provided with a slot 78 to receive the blank, and with a pair of spring retaining catches 79 of known construction. For the sake of clearness the finger 76 is omitted from Figure 2.

Operation tion directly in front of the die. The feed of the wire being thus stopped the slide 29 moves toward the left (Fi 1), which causes the plungers 35 to shift t e open die away from the position illustrated, thereby cutting off a section of material, and transferring the same to a osition directly in front of hammer 17. he hammer 17 is at that time retracted. When it strikes, the blank is headed, and its end is beveled in a depression 80 behind the die. The block 29 then moves toward the right and the springs 27 act to shift the die pieces 21,22 transversely to again center them with the bore 23. At the same time the pressure of one die piece upon the other is relieved, owing to'the fact that the pad 25 has a limited movement and does not follow the retraction of the .lunger 35 quite completely. ,The wire feed en resumes o eratlon. A newse'ction of wire enters t e open die and forces out the partially formed blank. I

Just at this time er 76 rises on account Offtll rocking causes the r ai'lsfi'l I saddle v 68 );111i When theffg g the blankt: reced to enter the slet '7 spring back int j pos1tionhold the bla in the finger: Thereupon shaft 56 rocks in a counter-clockwise direction, as viewed in Figure 3, turning bevel gear 74 and pinion 72 and shiftin t e rack 71 toward the right, as viewed in igure 2, until the finger stands directly in front of closed die 20. The die carrier 15 in the meantime is moved backwardly and is now moving forwardly. As soon as the latter movement has progressed far enough to cause the hammer 18 to strike, and to begin the movement of the blank into the solid die 20, the finger 76 starts to drop from the position of Fi re 3 to that of Figure 7, this movement eing brought about by a counter-clockwise partial rotation of g'catches 79 strike ng'lfitting the blank the shaft 55. The finger 76 is thereby withdrawn from the line of movement of the tion the open die with its material in tion directly beneath the line of action of the hammer 17. After the latter hammer has struck the next succeeding blank, shaft 55 turns clock-wise so as to raise track rails 67, 68 and move the finger 76 upward in time to grip the blank, whereupon another 0 ole of movements of the finger mechanism egins. When the rack 71 moves, the standard 70, of course, moves with it and carries along the saddle 69, the latter sliding upon the track rails 67, 68. When the rails move up and down the saddle 69, of course, moves with them, this being permitted by the sliding connection between the saddle and the standard 70.

The knock-out mechanism employed in connection with the solid die 20 functions in the ordinary and usual manner of such mechanisms, the rod 46 being moved inwardly at the proper time to enter the die and engage the rear end of the blank, forcing it out of the die into any suitable chute or container.

While in the attached drawings and foregoing descri tion I have disclosed more or less in detai one particular embodiment of my invention, it is obvious that variations and modifications may be made without departing from the spirit of the invention. Accordingly I desire it to be understood that the disclosure herein is not to be construed .as limiting the scope of the invention.

Having thus described my invention what I claim is:

1. In a header, an open die and a solid die adapted to perform successive operations upon the same blank, a pair of hammers cooperating with said dies res ectively, means, for feeding material into sai open die, means for moving said 0 en die transversely to cut the material into lank lengths and to osiont of the first blow hammer, and means for transferrin each blank from the open die to she solid die after being struck in the open 2; In a header, an open die and a solid adapted to perform successive operationsupon the same blank, a pair of hammers cooperating with said dies respectively, means for feeding material into said open die, means for moving said open die transversely to cut the material into blank lengths and to osition the open die with its material in out of the first blow hammer means operating after a blow struck u on said open die for feeding a new length 0 material into said open die, thereby e ecting the first blank, means for transferring said ejected blank to the solid die, and means for e ecting a blank from the solid die.

3. In a header, an open die and a solid die adapted to perform successive operations upon the same blank, :1 pair of hammers driven tostrike said dies simultaneously, and means operating between successive hammer blows for feeding material into the open -die from the blank in said rear and thereby ejecting the open die, for transferring said blank to the solid die, and for ejecting the finished blank from the solid die.

In testimon signature.

y whereof, I hereunto aflix my ROY H. SMITH.

upon the sonic blank, a pair of hammers driven to strike said dies simultaneously, and means operating between successive ham- In testimony whereof, I hereunto afiix my 10 signature.

ROY H. SMITH.

CERTIFICATE OF CORRECTION.

Patent No. 1,802,788- Granted April 28, 1931, to

ROY B. SMITH.

ertified that error appears in the printed specification of the abov e 1:111:12? p etent requiring correction as follows: Page 3 line 11 t. claim 2, after the word "solid" insert the word die; and that the and Letters Patent should he read with this correction therein that the same may conform to the record of the case in the Patent 0!! ice.

Signed and sealed this 26th day of May, A. D. 1931.

M. J. Moore,

(Seal) ,Acting Commissioner of Patents.

CERTIFICATE OF CORRECTION.

Patent No. 1,802,788. Granted April 28, 1931, to

ROY H. SMITH.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 3, line 114, claim 2, after the word "solid" insert the word die; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 26th day of May, A. D. 1931.

M. J. Moore, (Seal) ,Acting Commissioner of Patents. 

